Jonathan Hu
Research Scientist at Sandia National Laboratories
Livermore, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Hu is a Research Scientist at Sandia National Laboratories with 25 years of experience applying mathematical rigor to high-performance scientific software. He holds a PhD in Mathematics and has deep expertise in numerical linear algebra and performance engineering, demonstrated by contributions to the widely used Trilinos project where he optimized Tpetra matrix operations, added fine-grained timers, and improved solver driver usability. Based in Livermore, California, Jonathan blends research-level theory with pragmatic back-end engineering to make large-scale solver frameworks faster and more robust. His work shows a knack for both subtle correctness fixes (e.g., stack timer logic) and practical developer ergonomics (rerun options and file-naming controls), reflecting an engineer who thinks about users and performance at once.
25 years of coding experience
BA, Mathematics, BA, Mathematics at Lawrence UniversityPhD, Mathematics, PhD, Mathematics at University of Kentucky
Github Skills (10)
trilinos10
cluster-computing10
c-language10
cpp10
parallel-computing10
cprogramming-language10
performance-optimization10
cplus10
scientific-computing10
hpc9
Programming languages (10)
Github contributions (5)
trilinos/trilinos
Feb 2001 - Jan 2023
Role in this project:
Back-end Developer / Performance Engineer
Back-end Developer / Performance EngineerContributions:6866 commits in 22 years 3 months
Contributions summary:Jonathan focused on improving the Trilinos project by implementing features related to rerunning driver applications and addressing compiler warnings. They added command-line options for controlling reruns, output file prefixes/suffixes, and corrected a logic error in the stack timer reset. The user also implemented a function to remove zero entries from a Tpetra matrix, and added timer measurements to key performance sections. These contributions indicate a focus on improving the usability and efficiency of the Trilinos library.
govrepositoriesreacttrilinos
jhux2/Trilinos
Sep 2019 - Oct 2024
Primary repository for the Trilinos Project
Contributions:23 PRs, 26 pushes, 53 branches in 5 years 2 months
trilinos
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